/* ==========================================================================
   NextGen Energy — nge-styles.css  (V5 build, v4)
   Implements NGE_Art_Direction_Build_Spec_V2. Serif follows the HTML source
   of truth: Source Serif 4 with Georgia fallback.
   ========================================================================== */

:root{
  --warm-white:#FDFCF9;
  --cream:#FEF6DE;
  --sky-tint:#EAF6FD;
  --navy:#0C2340;
  --signal:#61CBF4;
  --gold:#FACF39;
  --gold-soft:#FBDB6B;
  --body:#3A3A3A;
  --hairline:#E4E0D4;
  --sky-hair:#CDE7F6;
  --muted:#77736A;
  --serif:"Source Serif 4",Georgia,serif;
  --sans:"IBM Plex Sans",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--warm-white);color:var(--body);
  font-family:var(--sans);font-size:17px;line-height:1.65;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit}

.wrap{max-width:1080px;margin:0 auto;padding:0 40px}
.measure{max-width:62ch}
.center{text-align:center}

/* ---- Typography ---- */
h1,h2,h3{font-family:var(--serif);color:var(--navy);font-weight:600;letter-spacing:-.015em}
h1{font-size:clamp(38px,5.2vw,62px);line-height:1.12}
h2{font-size:clamp(28px,3.4vw,40px);line-height:1.18}
h3{font-size:21px;line-height:1.3}
.lead{font-size:18.5px;line-height:1.6;margin-top:8px}
.lead+.lead{margin-top:18px}
p{max-width:62ch}

/* V5: "mental breathing room" between paragraphs on long-read pages (Gina, Aug 13).
   Applies only inside .prose so panels and cards keep their tighter rhythm. */
.prose p+p{margin-top:26px}
.prose .lead+p{margin-top:30px}
.prose h2{margin-top:6px}
.prose h3{margin-top:38px;margin-bottom:2px}
.prose .diagram{margin-top:44px}
.hero .sub{font-family:var(--sans);font-size:20px;line-height:1.55;margin-top:24px;color:var(--body)}
.hero .punch{font-size:20px;line-height:1.55;margin-top:20px;color:#6d6a62}
.caption{font-size:13px;color:var(--muted)}

/* ---- Label pattern ---- */
.label{
  font:600 12px/1 var(--sans);letter-spacing:.16em;text-transform:uppercase;
  color:var(--navy);display:inline-block;padding-bottom:6px;
  border-bottom:3px solid var(--gold);margin-bottom:22px;
}
.label.blue{border-bottom-color:var(--signal)}
.on-dark .label,.label.on-dark{color:var(--warm-white)}

/* ---- Header ---- */
.site-header{background:var(--navy);position:sticky;top:0;z-index:50}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:96px}
.site-header .brand img{height:66px;width:auto}
.nav{display:flex;align-items:center;gap:26px;list-style:none}
.nav a{
  font:500 15px var(--sans);color:var(--warm-white);text-decoration:none;
  padding:6px 0;border-bottom:2px solid transparent;letter-spacing:.01em;white-space:nowrap;
}
.nav a:hover{border-bottom-color:var(--gold-soft)}
.nav a.active{border-bottom-color:var(--gold)}
.nav-cta{
  background:var(--gold);color:var(--navy);border:2px solid var(--gold);
  padding:9px 18px;border-radius:2px;font:600 14px var(--sans);text-decoration:none;
}
.nav-cta:hover{background:var(--gold-soft);border-color:var(--gold-soft)}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:26px;cursor:pointer}


/* ---- Dropdown submenus (Gina, 19 Aug — restore nav children) ---- */
.nav .has-sub{position:relative;display:flex;align-items:center;gap:4px}
/* Nav items span the full header height so a submenu anchored at top:100%
   drops from the bottom edge of the bar, not from the middle of the text. */
@media(min-width:769px){
  .nav{height:100%}
  .nav>li{display:flex;align-items:center;height:100%}
  .subnav{left:-18px}
}
.sub-toggle{display:none;background:none;border:0;color:var(--warm-white);
  font:400 20px var(--sans);line-height:1;cursor:pointer;padding:6px 8px}
.subnav{list-style:none;position:absolute;top:100%;left:-14px;min-width:250px;
  background:var(--navy);border-top:3px solid var(--gold);
  box-shadow:0 10px 28px rgba(0,0,0,.34);padding:8px 0;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:.15s;z-index:60}
.nav .has-sub:hover>.subnav,
.nav .has-sub:focus-within>.subnav,
.nav .has-sub.open>.subnav{opacity:1;visibility:visible;transform:translateY(0)}
.subnav li{display:block}
.subnav a{display:block;padding:11px 22px;font-size:14.5px;border-bottom:0;white-space:nowrap}
.subnav a:hover,.subnav a:focus-visible{background:rgba(255,255,255,.09);border-bottom:0}
/* the parent keeps its own underline behaviour */
.nav .has-sub>a{padding-right:2px}

/* ---- Buttons ---- */
.btn{
  display:inline-block;padding:15px 30px;font:600 15px var(--sans);
  text-decoration:none;border-radius:2px;transition:.16s;cursor:pointer;letter-spacing:.01em;
}
.btn-gold{background:var(--gold);color:var(--navy);border:2px solid var(--gold)}
.btn-gold:hover{background:var(--gold-soft);border-color:var(--gold-soft)}
.btn-ghost{background:transparent;color:var(--navy);border:2px solid var(--navy)}
.btn-ghost:hover{background:var(--navy);color:var(--warm-white)}
.on-dark .btn-ghost{color:#fff;border-color:#fff}
.on-dark .btn-ghost:hover{background:#fff;color:var(--navy)}
.ctas{margin-top:38px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}

/* ---- Inline links ---- */
.prose a,a.inline{
  color:var(--navy);text-decoration:none;font-weight:500;
  border-bottom:2px solid var(--gold);padding-bottom:1px;
}
.prose a:hover,a.inline:hover{border-bottom-width:4px}

/* ---- Section bands ---- */
.section{padding:78px 0}
.band-cream{background:var(--cream)}
.band-sky{background:var(--sky-tint)}
.band-dark{background:var(--navy);color:#CFCCC4}
.band-dark h1,.band-dark h2,.band-dark h3{color:#fff}
.band-dark .lead{color:#CFCCC4}

/* ---- Hero (full-bleed image) ----
   V5: the flat 45% navy wash read too dark (Gina, Aug 3). Replaced with a
   left-weighted gradient: text stays legible, the photo and sky stay bright. */
.hero-img{position:relative;color:#fff;min-height:560px;display:flex;align-items:center;
  background-size:cover;background-position:center}
.hero-img::before{content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(12,35,64,.86) 0%,rgba(12,35,64,.68) 34%,rgba(12,35,64,.30) 64%,rgba(12,35,64,.10) 100%)}
.hero-img .wrap{position:relative;padding-top:96px;padding-bottom:96px}
.hero-img h1{color:#fff;max-width:16ch}
.hero-img h1 .rule{display:block;width:88px;height:4px;background:var(--gold);margin-top:22px}
.hero-img .sub{color:#F1EEE7;max-width:54ch}
.hero-img .punch{color:#E6E2DA}

/* ---- Statistic band ---- */
.statband{background:var(--gold)}
.statband.navy{background:var(--navy)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));padding:44px 40px}
.stat{padding:0 30px;border-left:1px solid rgba(12,35,64,.22)}
.stat:first-child{border-left:0;padding-left:0}
.stat .n{font-family:var(--serif);font-size:38px;font-weight:600;line-height:1;color:var(--navy)}
.stat .l{font-size:13px;letter-spacing:.05em;line-height:1.4;margin-top:9px;color:#5C5233}
.statband.navy .stat{border-left-color:rgba(255,255,255,.18)}
.statband.navy .stat .n{color:var(--signal)}
.statband.navy .stat .l{color:#B8C6D8}

/* ---- Panels ---- */
.panels{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px;margin-top:44px}
.panel{background:var(--warm-white);border:1px solid var(--hairline);border-top:5px solid var(--gold);
  padding:30px 26px;transition:.16s}
.panel:hover{border-top-color:var(--navy);transform:translateY(-2px)}
.panel .ac{font-family:var(--serif);font-size:15px;font-weight:600;letter-spacing:.14em;color:#9A8A45;margin-bottom:10px}
.panel h3{margin-bottom:6px}
.panel p{font-size:15px;line-height:1.6;margin-top:10px}
.panel a{color:var(--navy);font-weight:600;font-size:14.5px;text-decoration:none;
  border-bottom:2px solid var(--gold);padding-bottom:2px;display:inline-block;margin-top:18px}
.panel a:hover{border-bottom-width:4px}


/* ---- CEI solution tiles with background photography (Gina, 19 Aug) ---- */
.panel.tile{position:relative;overflow:hidden;border-top-color:var(--gold);
  background-size:cover;background-position:center;color:#fff;min-height:340px;
  display:flex;flex-direction:column;justify-content:flex-end}
.panel.tile::before{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,35,64,.34) 0%,rgba(12,35,64,.80) 58%,rgba(12,35,64,.94) 100%)}
.panel.tile>*{position:relative}
.panel.tile h3{color:#fff}
.panel.tile p{color:#DDE4EC}
.panel.tile .ac{color:var(--gold)}
.panel.tile a{color:#fff;border-bottom-color:var(--gold)}
.panel.tile:hover{transform:translateY(-2px);border-top-color:var(--signal)}

/* ---- Teasers (home launch-pad) ---- */
.teasers{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px;margin-top:44px}
.teaser{border:1px solid var(--hairline);background:var(--warm-white);padding:32px 28px;display:flex;flex-direction:column}
.teaser .label{margin-bottom:16px}
.teaser p{font-size:16px;flex:1}
.teaser a.go{margin-top:20px;color:var(--navy);font-weight:600;font-size:15px;text-decoration:none;
  border-bottom:2px solid var(--gold);padding-bottom:2px;display:inline-block;align-self:flex-start}
.teaser a.go:hover{border-bottom-width:4px}


/* ---- Video row (home page) ----
   Facade pattern: the poster is a button; the YouTube iframe is only injected
   on click, so the page loads no third-party player code. */
.videos{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:26px;margin-top:44px}
.video{margin:0;display:flex;flex-direction:column}
.video-play,.video iframe{width:100%;aspect-ratio:16/9;display:block;border:1px solid var(--hairline)}
.video-play{position:relative;padding:0;cursor:pointer;background:var(--navy) center/cover no-repeat;
  transition:.16s}
.video-play::after{content:"";position:absolute;inset:0;background:rgba(12,35,64,.20);transition:.16s}
.video-play:hover,.video-play:focus-visible{transform:translateY(-2px);border-color:var(--navy)}
.video-play:hover::after{background:rgba(12,35,64,.06)}
.video-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:2;
  width:66px;height:66px;border-radius:50%;background:var(--gold);
  box-shadow:0 4px 18px rgba(0,0,0,.32);transition:.16s}
.video-icon::before{content:"";position:absolute;top:50%;left:53%;transform:translate(-50%,-50%);
  border-style:solid;border-width:13px 0 13px 21px;border-color:transparent transparent transparent var(--navy)}
.video-play:hover .video-icon{background:var(--gold-soft);width:72px;height:72px}
.video figcaption{display:flex;align-items:baseline;gap:12px;margin-top:16px}
.video-n{font-family:var(--serif);font-weight:600;font-size:15px;color:#9A8A45;letter-spacing:.08em}
.video figcaption h3{font-size:19px;margin:0}
.video iframe{border-color:var(--navy)}
@media(prefers-reduced-motion:reduce){.video-play:hover{transform:none}}


/* ---- Home video feature (single video beside copy) ---- */
.feature{display:grid;grid-template-columns:1.3fr 1fr;gap:46px;align-items:center}
.feature-media{margin:0}
.feature-copy .label{margin-bottom:18px}
.feature-copy h2{margin-bottom:14px}
.feature-copy .ctas{margin-top:26px}
@media(max-width:820px){.feature{grid-template-columns:1fr;gap:30px}}

/* ---- Pull-quote ---- */
.pull{background:var(--navy);padding:66px 0}
.pull q{quotes:none;display:block;font-family:var(--serif);font-weight:600;
  font-size:clamp(24px,3.1vw,34px);line-height:1.34;color:#fff;max-width:24ch;
  border-left:5px solid var(--gold);padding-left:30px}
.pull.inline-quote{background:transparent;padding:44px 0}
.pull.inline-quote q{color:var(--navy)}

/* ---- Blue sky / black sky ---- */
.sky-light{background:var(--sky-tint);padding:58px 0;border-top:1px solid var(--sky-hair)}
.sky-dark{background:var(--navy);padding:58px 0}
.sky-dark h3{color:#fff}.sky-dark p{color:#B8C6D8}
.skytag{font:600 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;
  margin-bottom:16px;display:inline-block}
.sky-light .skytag{color:var(--navy);border-bottom:3px solid var(--signal);padding-bottom:6px}
.sky-dark .skytag{color:var(--gold)}

/* ---- Who we serve ---- */
.serve{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-top:40px}
.serve .card{border:1px solid var(--hairline);background:var(--warm-white)}
.serve .card img{aspect-ratio:4/3;object-fit:cover;width:100%}
.serve .card .body{padding:22px 20px}
.serve .card h3{font-size:19px;margin-bottom:8px}
.serve .card p{font-size:14.5px;line-height:1.55}
.serve .card a{color:var(--navy);font-weight:600;font-size:14px;text-decoration:none;
  border-bottom:2px solid var(--gold);display:inline-block;margin-top:14px;padding-bottom:2px}

/* ---- Feature list ---- */
.features{list-style:none;margin-top:26px;display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:14px 30px}
.features li{padding-left:26px;position:relative;font-size:16px;line-height:1.5;max-width:52ch}
.features li::before{content:"";position:absolute;left:0;top:9px;width:12px;height:12px;background:var(--gold);border-radius:2px}

/* ---- Diagram ---- */
.diagram{background:var(--warm-white);border:1px solid var(--hairline);padding:40px;margin-top:34px}
.diagram svg{width:100%;height:auto}
.legend{display:flex;gap:26px;flex-wrap:wrap;margin-top:26px;font-size:13px;color:var(--muted)}
.legend i{width:13px;height:13px;border-radius:2px;display:inline-block;vertical-align:-1px;margin-right:7px}

/* ---- Callout band ---- */
.callout{background:var(--navy);padding:56px 0}
.callout p{font-family:var(--serif);font-weight:600;color:#fff;font-size:clamp(24px,3.1vw,34px);
  line-height:1.34;max-width:26ch;border-left:5px solid var(--gold);padding-left:30px}

/* ---- Full-bleed banner photo (V5) ---- */
.banner{margin:0;position:relative}
.banner img{width:100%;height:clamp(230px,32vw,400px);object-fit:cover}
/* .banner--full keeps the supplied crop intact — used where the subject sits low in
   the frame and a centre-crop would cut it off (MSP battery cabinets). */
.banner--full img{height:auto;aspect-ratio:1800/668;object-fit:cover}
.banner figcaption{font-size:12.5px;letter-spacing:.04em;color:var(--muted);
  padding:10px 40px 0;max-width:1080px;margin:0 auto}
@media(max-width:780px){.banner figcaption{padding-left:24px;padding-right:24px}}

/* ---- Vision statement band (V5) ---- */
.vision{background:var(--navy);padding:72px 0}
.vision .label{color:var(--gold);border-bottom-color:var(--gold)}
.vision p{font-family:var(--serif);font-weight:400;color:#fff;
  font-size:clamp(21px,2.5vw,29px);line-height:1.42;max-width:38ch}
.vision p b,.vision p strong{font-weight:600;color:var(--gold)}

/* ---- Section hub cards (About landing, V5) ---- */
.hubcards{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:22px;margin-top:44px}
.hubcard{border:1px solid var(--hairline);border-left:5px solid var(--gold);
  background:var(--warm-white);padding:30px 26px;display:flex;flex-direction:column;transition:.16s}
.hubcard:hover{border-left-color:var(--navy);transform:translateY(-2px)}
.hubcard h3{margin-bottom:8px}
.hubcard p{font-size:15px;line-height:1.6;flex:1}
.hubcard a{color:var(--navy);font-weight:600;font-size:14.5px;text-decoration:none;
  border-bottom:2px solid var(--gold);padding-bottom:2px;display:inline-block;
  margin-top:20px;align-self:flex-start}
.hubcard a:hover{border-bottom-width:4px}

/* ---- Leadership grid ---- */
.leaders{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:28px;margin-top:40px}
/* Seven leaders reflow as 4 + 3 via the auto-fit rule above. */
.leader img{width:100%;aspect-ratio:1/1;object-fit:cover;background:var(--cream);border:1px solid var(--hairline)}
.leader h3{font-size:19px;margin-top:16px}
.leader .role{font-size:13px;letter-spacing:.02em;color:var(--muted);margin-top:4px}
.leader p{font-size:14px;line-height:1.55;margin-top:10px}

/* ---- Footer ---- */
.site-footer{background:var(--navy);color:#8F9BAC;padding:56px 0 40px}
.site-footer .grid{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap}
.site-footer img{height:76px;margin-bottom:20px}
.site-footer a{color:#CBD4DF;text-decoration:none;font-size:14px}
.site-footer a:hover{color:#fff}
.site-footer .cols{display:flex;gap:44px;flex-wrap:wrap}
.site-footer .col{min-width:170px}
.site-footer .col h4{color:#fff;font:600 12px var(--sans);letter-spacing:.14em;text-transform:uppercase;margin-bottom:14px}
.site-footer .col a{display:block;margin-bottom:8px}
.site-footer .legal{margin-top:36px;border-top:1px solid rgba(255,255,255,.12);padding-top:20px;font-size:13px;color:#7C889A}


/* ---- Footer social ---- */
.social{display:flex;align-items:center;gap:12px;margin-top:22px}
.social-label{font:600 12px var(--sans);letter-spacing:.14em;text-transform:uppercase;color:#8F9BAC;margin-right:2px}
.social a{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border:1px solid rgba(255,255,255,.22);border-radius:2px;transition:.16s}
.social a:hover,.social a:focus-visible{background:var(--gold);border-color:var(--gold)}
.social svg{width:19px;height:19px;fill:#CBD4DF;transition:.16s}
.social a:hover svg,.social a:focus-visible svg{fill:var(--navy)}

/* ---- Credential / partner logo strip (grayscale, color on hover) ---- */
.credential-strip{background:var(--warm-white);border-top:1px solid var(--hairline);border-bottom:1px solid var(--hairline);padding:26px 0}
.credential-strip .row{display:flex;align-items:center;justify-content:center;gap:44px;flex-wrap:wrap}
.cred-label{font:600 12px var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.credential-strip a{display:inline-flex;align-items:center}
.credential-strip img{height:34px;width:auto;filter:grayscale(1);opacity:.55;transition:.2s}
.credential-strip a:hover img,.credential-strip a:focus-visible img{filter:none;opacity:1}

/* News masthead + About partner logos on panels */
.masthead{width:auto;height:auto;max-width:200px;max-height:54px;object-fit:contain;margin-bottom:16px;display:block}
.panel .plogo{width:auto;height:auto;max-width:210px;max-height:90px;object-fit:contain;margin-bottom:18px;display:block}

/* ---- Accessibility ---- */
a:focus-visible,button:focus-visible,.btn:focus-visible,.nav a:focus-visible{
  outline:2px solid var(--signal);outline-offset:2px}
.band-dark a:focus-visible,.site-header a:focus-visible,.site-footer a:focus-visible{outline-color:var(--gold)}
.skip{position:absolute;left:-999px}
.skip:focus{left:16px;top:10px;background:var(--gold);color:var(--navy);padding:8px 14px;z-index:100;border-radius:2px}

/* ---- Responsive ---- */

/* Nav stays a full horizontal menu on desktop/tablet; collapses to a hamburger only on phones. */
@media(max-width:768px){
  .nav-toggle{display:block}
  .nav{
    position:absolute;top:100%;left:0;right:0;               /* anchors below header at any header height */
    background:var(--navy);flex-direction:column;align-items:stretch;gap:0;
    padding:8px 24px 22px;display:none;
    border-top:2px solid var(--gold);box-shadow:0 8px 24px rgba(0,0,0,.35);
  }
  .nav.open{display:flex}
  .nav a{width:100%;padding:15px 2px;border-bottom:1px solid rgba(255,255,255,.10)}  /* 44px+ tap targets */
  .nav .has-sub{flex-wrap:wrap;width:100%}
  .nav .has-sub>a{width:auto;flex:1}
  .sub-toggle{display:block;font-size:26px;padding:10px 6px}
  .subnav{position:static;opacity:1;visibility:visible;transform:none;display:none;
    width:100%;box-shadow:none;border-top:0;background:rgba(0,0,0,.24);padding:0;min-width:0}
  .nav .has-sub.open>.subnav{display:block}
  .subnav a{padding:13px 18px;font-size:14px;border-bottom:1px solid rgba(255,255,255,.07)}

  /* V5: the CTA is now an outbound link to KeepLightsOnMA.org, so it stays
     visible on phones instead of being hidden as a duplicate of Contact. */
  .nav-cta{width:100%;margin-top:14px;text-align:center;padding:14px 12px;border-bottom:0}
  .nav li:last-of-type a{border-bottom:0}
}

/* Content reflow. Most grids already reflow fluidly via auto-fit minmax(). */
@media(max-width:780px){
  .wrap{padding:0 24px}
  .section{padding:52px 0}
  .site-header .wrap{height:74px}
  .site-header .brand img{height:46px}
  .hero-img{min-height:0}
  .hero-img .wrap{padding-top:64px;padding-bottom:64px}
  .stats{grid-template-columns:1fr 1fr;padding:32px 24px;gap:24px 22px}
  .stats .stat{border-left:0;padding:0}
  .pull q,.callout p{padding-left:20px}
  .site-footer .grid{flex-direction:column;gap:28px}
  .site-footer .cols{gap:36px}
}
@media(max-width:480px){
  .serve{grid-template-columns:1fr}
  .teasers,.panels{grid-template-columns:1fr}
}

/* Tablet range: keep the full horizontal nav but tighten it so the wide logo lockup + menu fit. */
@media(max-width:1080px) and (min-width:769px){
  .site-header .brand img{height:52px}
  .nav{gap:14px}
  .nav a{font-size:14px}
  .nav-cta{padding:8px 12px;font-size:13px}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .panel:hover{transform:none}
}